Textile fabric and method of making the same



1927. 1,618,763 Feb 22 H. M. LIPPER i TEXTILE FABRIC AND METHOD OF MAKING THE SAME Filed Jan 4 1927 2 Sheets-Sheet 1 IIIYVENTOR:

fiz /Fm M. L p /z Patented Feb. 22, 1927.

' UNITED STATES PATENT orrlcs.

HABBY M. LIPPER, P PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO LIPPER MAN U- FACTURING CO. INC., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.-

TEXTILE FABRIC AND METHOD OF MAKING THE SAME.

Application filed January 4, 1927. Serial in. 158,851.

My invention relates to a new and useful textile fabric and method of makin the same, and it relates more particular y to a relatively narrow knitted textile band,

ribbon ,ombraid, known in the trade as hat braiding, formed of suitable threads to imitate straw or the like, and adapted to be assembled or sewed together in successive rows, to form a hat shape.

The particular material of which the hat braid of my invention is formed is an artificial cellulose thread or more particularly 'a viscose thread, known in the trade as artificial straw and comprising viscose threads, of a consistency, thickness and texture resembling straw, particularly when made up chain stitches together, to form a unitary fabric structure. Due to the relatively smooth character of the transverse cellulose or viscose threads, and the absence of any positive intereng'agement between the transverse connecting weft threads and the successive transverse rows of loops, of the longitudinal rows of chainstitches, said separate rows of knitted chain stitches would have a tendency to slip or slide upon the transverse connectin weft threads, so as -to separate from ear: -other at points, and to crowd or gather atother points, thereby producing a non-uniform texture inthe completed braiding and hat product. 1

In order to overcome this defect of hat braiding of this character, and in order to produce hat braiding which will be of uniform texture, .and not liable to any irregular spacingof. the paralleLrou-s of knittedcha n stitches t ereof, Iproduce a braiding, according to my invention, by forming a number of separate, parallel longitudinal rows of knitted chain stitches, upon an upright flat knitting machine, suflicient to cover the desired width of the tape braiding or fab- "stitches,

ric, and of any suitable single or multiple thread strands, and interlacing with said separate parallel rows of knitted chain transverse connecting or weft threads of a crinkled character, simultaneously with the formation of the successive stitches or loops, thereby to connect said separate rows of knitted chain stitches into a unitary fabric structure, in which the successive longitudinal rows of chain stitches are maintained fixedly upon the transverse connecting threads. V

Due to the crinkled character of the transverse connecting threads, the separate longitudinal rows of chain stitchesiare main.- tained in substantially fixed and spaced relation to each other and not subject to slippage or sliding even though s'aid' transverse crinkled connecting threads are merely passed. through the loops 'anddo not interlock with the same, but merely grip the latter by virtue of the irregular or crinkled character thereof. V

The irregular or crinkled character of the transverse connecting threads may be caused by a number of difierent means, as for instance by twirling or. twisting a rela- "tively flat or ribbon like thread'of cellulose.

or more particularly viscose, of sufficient rigidity. 1

For the purpose of illustrating my invention, I have shown in the accompanying drawings, a form thereof which is at presentpreferred by me since it will give in practice satlsfactory. and reliable results, although it 'isto be understood that 'the various inst'rumentalities of which my invention con sists can be variously arranged-and organ- .ized and that my invention is notlimited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Referring to the drawings,

Figure '1 represents a diagrammatic view of an upright flat knitting machine illustrating the general method of forming my;

novel hat braiding or fabric.

Figure 2 represents a diagrammatic side elevation of the same.

Figure '3 represents a plan view on a great- 1y enlarged scale of a portion of the braiding, or fabric of my invention.

Figure 4 represents a plan view of a group of three threads which are employed inthe particular embodiment. of my invention, illustrated in Figure 3, to 'form the trans verse connecting weft strand.

Figure represents a section on line 5--5 of Figure 4.

In carrying out my invention, I employ any standard or conventional upright, flat, latch needle knitting machine, illustrated diagrammatically in ries of separate longitudinal rows of chain stitches 1 2, 3 and 4, are knitted simultaneously and in spaced relations to each other, by means of a corresponding series of latch needles 5, 6, 7 and 8. In the articular illustration in Figures 1 and 2, t e separate and parallel longitudinal rows of chain stitches 1, 2 3 and 4, are shown as being formed of dou 1e threa'dsor ends 9 and 10, su plied from suitable spools 11 and 12. The t reads 9 and which go to make up the rows of chain stitches 1, 2, 3 and 4, are of a suitable cellulose composition or more particularly igures 1 and 2. A seviscose, and are of a relatively smooth tex-- ture resembling straw.

The transverse connecting weft strand des i ated generall by the numeral 13, may 5;) be compose of a single crinkled thread or a number of threads, as the threads 14, and 16 illustrated in the drawing. Thus, in the articular illustration shown in the drawing, the transverse connecting weft strand 13 is composed of two crinkled viscose threads 14 and 15, having irregular surfac and comprising preferabl a twirled or twisted flatalribbon-like ban of viscose, and a smooth read 16 which may be added "to the weft strand 13, in order to impart thereto the desired tensile strength.

The weft strand 13 thus composed of one or more crinkled threads 14 and 15, and also including, if desired, a smooth thread 16,-to impart tensile strength thereto, may supplied from a single spool 17.

The weft or connecting strand 13 is then assed through a tubular weft carrier 18, ormin part of the knitting machine, and

adapt to be moved back and forth across the width of'the tape, in timed relation to the operation of the needles 5, 6, 7 and 8 of the knitting machine. Thus, prior to each downward stroke of the needles 5, 6, 7 and 8, the weft carrier 18 is moved across the width of the braid or fabric, from; one side to the opposed side thereof, thereby delivering and disposing the weft strand 13 across the series of warp strands 19, just prior to the completion of the stitch, thereby to enclose the transverse weft 13 in the transverse row of knitted loops thus formed.

By so positioning one or more crinkled transverse connecting or weft threads in the successive transverse rows of knitted chain stitches, the several separate longitudinal rows of knitted chain stitches are not only connected to each other, to form a unitary fabric structure, but are also spaced from each other in a relatively fixed and permanent manner, so as to prevent any slippage or relative displacement of one with respect to the others.

It will now be apparent that I have devised a new and useful fabric and method of making the same, which embodies the features of advantage enumerated in the statement of the invention and the above description, and while I have, in-the present instance shown and described a form thereof which is at present preferred by me since it will give in practice, satisfactory and reliable results, it is to be understood that such preferred form is susceptible of modification in various particulars, without departing from the spirit or scope of my invention or sacrificing any of its advanta es. 9

Having thus described my 1rivention,what I claim as new and desire to secure by Letters Patent is 1. A textile fabric comprising a series of non-interlacing longitudinal rows of knitted stitches of suitable thread and transversely extending crinkled threads interlaced with the successive stitches of the parallel rows and connecting the same to form a unitary fabric layer with the rows or knitted stitchesmaintained in fixed spaced relation to each other b said transversely interlaced crinkled three 5.

2. A textile fabric comprising separate, parallel rows of knitted stitches. of suitable thread and transversel extending crinkled cellulose threads inter aced with. the successive stitches .of the parallel rows and connecting the same to form a unitary fabric layer with the rows of knitted stitches maintained in fixed spaced relation to each other by said transversely iuterlacedcrinkled cellulose threads.

3. A textile fabric comprising separate parellel rows of knitted chain Stitches and transversel extending crinkled threads in terlaced with the stitches of each of said rows to connect the same in substantially fixed spaced relation to each other to form a unitary fabric.

4. A textile fabric comprising separate, parallel rows of knitted chain stitches and transversely extending crinkled cellulose threads interlaced with the stitches of each of said rows toconnect the same in substantially fixed spaced relation to each other to form a unitary fabric.

5. A textile braid of the character stated, com rising longitudinal rows of knitted stitc ics formed of relatively smooth cellulose threads and transversely extending crinkled cellulose threads interlaced with the rows of said knitted stitches to retain the same in substantially lixed spaced relation to each other.

6. A textile braid of'the character stated,

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. which consists in knitting a series of sepaknitted chain stitches in substantially fixed spaced relation to each other.

7. The method of making textile. fabrics rate, parallel, longitudinal rows of stitches of suitable threads in predetermined spaced relation to each other and interlacing crinkled threads with each of said rows of knitted stitches at suitableintervals simultaneously with the knitting of the stitches of said longitudinal rows, thereby to connect the latter in substantially fixed spaced relation to each other toform a unitary fabric.

8. The method f making textile fabric which consists in knitting separate, parallel, longitudinal rows of chain stitches of relatively smooth threads, and in predetermined spaced relation to each other and interlacing a transverse crinkled thread with the parallel longitudinal rows of chain stitches, si-

multaneously with the formation of each successive stitch of the several, rows, thereby to connect the latter in substantially fixed spaced relation to each other to form a unitary fabric. a

9. The method of making textile fabric which consists in knitting separate, parallel, longitudinal rows of chain stitches of relatively smooth cellulose threads, and in predetermined spaced relation to each other and interlacing a transverse crinkled cellulose thread with the .parallel, longitudinal rows of chain stitches, simultaneously with the formation of each successive stitchof the several rows, thereb to connect the latter in substantially fixe spaced relation to each other to form a unitary fabric.

10. A textile fabric comprising parallel rows of knitted stitches and transversely extending crinkled threads interlaced with the stitches of each of said rows, so constructed as tomaintain the same in substantially fixed spaced relation to each other.

' HARRY M. LIPPER. 

